My thanks to Hyper for sponsoring Daring Fireball this week to promote HyperJuice, their airline-safe 27,000 mAh battery pack with dual USB-C ports (100W and 60W) and one 18W USB-A port. All three ports can be used at once, so you can charge a 15-inch MacBook Pro, a smaller MacBook or iPad Pro, and an iPhone all once, all at high speeds.

Using the 100W USB-C input, you can recharge HyperJuice from empty to full in about one hour using a MacBook Pro’s charger. HyperJuice weighs only 550 grams and can fit in the palm of your hand. It’s a lot of power in a small package.

It’s a Kickstarter project that has already been funded (many times over). The campaign ends on Monday so act quickly — right now you can order HyperJuice for up to 50 percent off the expected retail price. Over 5,700 backers have already pledged over $1 million to get HyperJuice at these discounted prices.